What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCBoth

LOINC Code 56904-6: APOE gene mutation analysis Molgen Nom (Bld)

Name: LOINC Code 56904-6: APOE gene mutation analysis Molgen Nom (Bld)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:38.264Z

56904-6 is a LOINC code used to identify APOE gene mutation analysis Molgen Nom (Bld) in laboratory and clinical observation data. You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges. LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component APOE gene mutation analysis. It is commonly used with the system or sample type Bld.

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component APOE gene mutation analysis. It is commonly used with the system or sample type Bld.

When is it used?

Used in lab systems, EHRs, and clinical data exchange.
May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
Status: DEPRECATED
Order vs observation: Both
Method: Molgen

What it does not mean

The code identifies the observation or test, not the actual result.

Key facts

Deprecated APOE gene mutations found [Identifier] in Blood by Molecular genetics method Nominal
APOE gene mutation analysis
AD2; APO-E; apolipoprotein E; Apolipoprotein E gene; Blood; Identity or presence; LDLCQ5; LPG; MGC1571; Molecular genetics; Molecular pathology; MOLPATH; Mut; Mutations; Nominal; PCR; Point in time; Random; WB; Whole blood

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

APOE gene mutation analysis Molgen Nom (Bld)Deprecated APOE gene mutations found [Identifier] in Blood by Molecular genetics method NominalDeprecated APOE gene Mut Anal BldAPOE gene mutation analysisMOLPATHAPOE gene mutation analysis, BloodPrid

Frequently asked questions

Code details

Code56904-6

SystemLOINC

Display nameAPOE gene mutation analysis Molgen Nom (Bld)

DescriptionAPOE gene mutation analysis

Short nameDeprecated APOE gene Mut Anal Bld

ComponentAPOE gene mutation analysis

PropertyPrid

TimingPt

System (specimen)Bld

ScaleNom

MethodMolgen

ClassMOLPATH

StatusDEPRECATED

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.29

Last changed2.36

Consumer names

APOE gene mutation analysis, Blood

Part names

APOE gene mutation analysisPridPtBldNomMolgenPresence or IdentityPoint in time (spot)BloodMolecular genetics

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from LOINC. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.